Collapsible container assembling method and jig



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S. N. LEOPOLD El' AL COLLAPSIBLE CONTAINER ASSEMBLING METHQD AND JIG Original Filed Nov'. l2, 1952 fig@ 5,1

July 30, 1935.

Patented July 30, 1935 UNITED STATES COLLAPSIBLE CONTAINER ASSEMBLING METHOD AND JIG Samuel N. Leopold and Henry K. Powell, Chicago, Ill., assignors to Morris Paper Mills, Chicago, Ill., a corporation of Illinois Application November 12, 1932, Serial No. 642,388

Renewed December 18, 1934 i I 13 Claims.

This invention relates to a. method and a jig for assembling containers comprising a collapsible tubular body of paper. board, the body being provided with tongues at one end, and a flanged end closure or bottom into which the tongued end of the body is inserted and locked. This application isa continuation in partof our copending application, Serial No. 503,018, iiled December 17, 1930.

The main object of this invention is to provide a method and a devicefor facilitating the insertion of the tongued end portion of the tubular container body of the above mentioned kind of can structure into the end enclosure of such structure.

Other objects and advantages of the invention will be understood by reference to the following specication and accompanying drawing in which there is illustrated an assembling jig embodying a selected formof the invention.

in the drawing:-

Fig. 1 is a plan.

Fig. 2 is a section on vthe line 2--2 of Fig. 1.

Fig. 3 is la fragmentary side elevation illustrating a locking device. l

Fig. l is a vertical section through the bottom portion of an assembled can of the kind referred to. l

The container structure desired to be assembled by the jig herein disclosed is illustrated in Fig. 4 and comprises a tubular paper board body 5 having tongues 6, at its lower end, said tongues being preferably tapered towards their free or lower ends as indicated in Fig. 1. The .tongues 6 are adapted to be bent transversely intermediate their lengths along a line such as indicated at I in Fig. 1, and these tongues are positioned against a bottom disk 8. The bottom disk 8 may be a paper board vdisk or it may be an integral end piece formed with the collar 8 which has an upwardly and inwardly tapered or conical flange I0. In this instance, the bottom closure 8 is illustrated as being in the form of a paper disk seated on an end ilange or lip II of the .collar '9. An inner closure member I2 which may also be of paper board is inserted from the open end of the can body into the position illustrated wherein it expands the tongues 6 to securely lock them inside. of the conical `flange I0. The disk I2 which is somewhat larger in diameter than the integral diameter of the main body 5 may be inserted into the described po ition by reason of its flexibility which permits mporary distortion thereof.

The jig for facilitating the .assembling of the described can structure includes a base member I3 on which a pair of jaws I4 and I5 are mounted. One of the-jaws, I4 in this instance, is iixedly mounted on the base I3 by 'any 'suitable means and the other jaw member I5 is, mounted for lateral movement relative to the member I4, and in this instance it is pivotedl to the member I4 by a hinge arrangement indicated at I6. A coil compression spring I'I disposed in suitable recesses in the jaw members I4 and I5 adjacent the hinge connection serves to normally urge the jaw member I5 to swing to' open position as indicated in full lines in Fig. 1. A latch member 4I8 pivoted as indicated at I9 on the xed member I4 is adapted to engage a tooth 28 formed on or secured to the movable member I5 to lock the latter member in closed position as indicated in dotted lines in Fig. 1. A spring 2l acting between a handle portion 22 of the latch and a ange portion 23 of the jaw I4 serves to urge the latch into locking position. The latch may be disengaged by manually pressing down on the handle end 22 of the latch, or a connection such as indicated at 24 to a treadle may be provided. As best shown in Fig. 2, the `iaw members are provided with a lower conical recess 25 and an upper, inverted conical iiaring ange 26. The conical recess 25 is under-cut with 'respect to the aring portion 26 and it is adapted to receive the bottom closure elements 8 and 9 as.

clearly shown. The b ottom closure elements 8 and 9 may be inserted as a unit into place in `the jaw member I4, while the jaw -member I5 is in open position, and the .jaw member I5 may thereupon be closed so that the closure structure is conned in operative relation to the upper flaring wall portions l26 lof the jaws. the flaring wall portions 26 of the jaws are of a-width which is preferably greater than the length of the tongues 6, and they 'are flared out-A wardly to such an extent that when a can body 5 is inserted in an angular position as illustrated in full lines in Fig. 2, the tongues as indicated at A at. one side of the can body may be bent inwardly by engagement with the end closure member 8 while the opposite tongues indicated at B remain nearly straight but engage at their ends the adjacent flaring wall portions.

The initial operation in assembling a can body with an end closure will thus be understood to include the insertion of the end closure into the jig and insertion of the can body into the jig in inclined position as illustrated in full lines in Fig. 2. To complete the insertion of the can body into the end closure, the can body is moved to As shown,

perpendicular position relative to the end closure and preferably slightly rotated at the same time whereby the tongues will all be caused to fold inwardly and the can body adjusted to the position indicated in dotted lines in Fig. 2. This done, the bottom insert or locking member I2 may then be inserted. It is preferable, however, that the assembling jig be opened before the locking member I2 is inserted so as to permit freedom of flexing of the can body incident to the forcing of the locking member I2 into place.

The described assembling-jig structure is preferably made of light weight construction so that it may be easily handled and moved from place to place as desired. Aluminum may conveniently be used in producing the parts since it is of Ilight weight and ample strength.

Changes may be made in the above described structure without departing from the spirit of the invention, the scope of which should be determined by reference to the following claims, the same being construed as broadly as possible;

We claim as our inventionzl. The method of applying an end closure having a flange adapted to embrace a marginal end portion of a tubular container body to a tubular paper board body having tongues at its lower end, which consists in holding the end closure in a fixed position, inserting the tongued end of the body into the closure in an axially inclined position so as to cause certain of the tongues to initially engage the closure and be thereby folded inwardly of the body and then moving the body to perpendicular position relative to the plane of the closure and guiding the other tongues into engagement with such closure and folded relation to the body.

2. The method of applying an end closure having a flange adapted to embrace a marginal end portion of a tubular container body to a tubular paper board body having tongues at its lower end, which consists in holding the end closure in a xed position, inserting the tongued end of the body into the closure in an axially inclined position so as to cause certain of the tongues to initially engage the closure and be thereby folded inwardly of the body and then turning the body slightly while' moving the same to perpendicular position relative to the plane of the closure and guiding the other tongues into engagement with such closure and folded relation to the body.

3. A device for facilitating assembly of a cylindx'ical tubular container body having flexible tongues at one end and a closure having a flange adapted to snugly flt the container body adjacent said tongues, comprising-a base member adapted to support the closure, complementary, relatively movable jaw members forming between them a downwardly contracting, circular throat and a recess below said throat for receiving the flange of the closure supported on the base, said recess serving to hold the closure on the base in co-axial relationship with said throat, the throat being of contour, height and form such as to permit rotation therein of the tubular body member while the latter is in an inclined position relative to the base and such as to engage and fold the tongues of the body member inwardly when the latter is rotated and adjusted to effect full seating of the container end portion on the closure, a latch for locking the jaw members in operative relationship, and means for urging the jaw members to move to inoperative relationship when v said latch is released.

.jacent .said

ible tongue members extending longitudinally l from an end thereof, which comprises distending said collapsible body portion, pressing said.

body portion toward and the tongue members at one side obliquely against a resisting surface whereby to deflect said tongue members inwardly, and rotating said body portion and moving the same toward perpendicular position with respect to said surface to deflect the tongue members on all sides of said body portion inwardly.

5. A device for assembling fibrous containers of the type having a tubular body portion with inwardly flexible tongues extending from one end thereof, comprising a base member and a downwardly contracting annular tongue defiecting member of such contour, height and size as to permit rotation therein of the tubular body member while the latter is in inclined position relative to said base member, whereby to deflect the tongues on said body member inwardly thereof.

6. A device for assembling fibrous containers of the type having a tubular body portion and inwardly flexible tongues of substantial length extending from one end thereof, comprising a base member and a throat member mounted adbase member, said throat member having an annular portion of substantially the same diameter as said body portion for maintaining the latter in distended shape when positionedtherein and an outwardly flared throat portion above said annular portion adapted to receive said body portion in an inclined position, the combined heights of said annular portion and said throat being greater than the length of the tongues on a container to be erected on said device.

'7. A device for assembling fibrous containers of the type having a tubular body portion with inwardly flexible tongue members extending from one end thereof, comprising combined base and body portion receiving members of such height and form as to deflect the tongues of such body portion inwardly when said body portion is inserted the tongues in inwardly bent positions and the body portionin substantially circular shape when said container is moved to another position therein.

8. A device for assembling fibrous containers of the type having a. body portion and tongue members hinged adjacent one end thereof, compris ing combined base and body portion receiving members of such height and form as to deflect the tongues of a container inwardly when the container is inserted therein in one position and to maintain the tongues in inwardly bent condition and the body portion of the container in substantially circular shape when said container is moved to another position, and means for receiving a bottom member securing element for attachment to said container when the latter is in said last named position.

9. A device for assembling an end closure and a flexible tubular body member having inwardly flexible fingers of substantial length extending from an end thereof, comprising a throat meml ber affording a round flaring throat which at its narrowest point is of approximately the same diameter as the body member, said throat being of a height and flare such as to contact outer faces of all of the body member tongues when the body therein in one position and to maintain member is inserted into it in an oblique relationship.

10. A device for assembling an end closure and a tubular container body having longitudinally extending inwardly iiexible tongues at the end thereof, comprising an annular throat member aifording a round contracting throat having its smallest diameter approximately the same as the diameter of the container body, said throat member having portions for retaining the end closure in a position approximately concentricjwith and perpendicular to the axis of the throat and having its inner surface flaring at an angle such as to admit insertion and rotation of the container body therein in a position wherein the outer faces of tongues on one side of the container contact such end closure and the outer faces of its other tongues Contact said inner surface.

11. A device for assembling an end closure and a tubular container body having longitudinally extending inwardly iiexible tongues at the end thereof, comprising an annular throat member affording a round contracting throat having its smallest diameter approximately the same as the diameter of the container body, said throat member having portions for retaining the end closure in a. position approximately concentric with and perpendicular to the axis of the throat and having its inner surface daring at an angle such as to admit insertion of the container body in a position oblique to the axis of the throat and permit its rotation therein with outer faces of some of its tongues in contact with the end closure and others in contact with said daring inner surface.

12. A device for assembling iibrous containers of the type having a tubular body portion with inwardly exible tongues extending from one end thereof and an end closure adapted to form an interlock with said tongues when the latter are in inwardly flexed position, comprising a base member and a body portion receiving member having an inwardly contracting portion for initiating the inward iiexing of said lingers and another portion of substantially the same crosssectional size asA the normal cross-sectional size of said body portion.

13. A device for assembling fibrous containers of the type having a tubular body` portion with inwardly flexible tongues extending from one end thereof and an end closure adapted to form an interlock with said tongues when the latter are in inwardly flexed position, comprising a base member and a body portion receiving member having an inwardly sloping portion of such contour, height and size as to permit rotation therein of the tubular body portion while the latter is in inclined position relative to said base member whereby to deflect the tongues on said body portion inwardly, and another portion of substantially the same cross-sectional size as the cross-sectional size of said body portion.

SAMUEL N. LEOPOLD. HENRY K. POWELL. 

